Q27 of 94 Page 228

The height of a cylinder is 80 cm and the diameter of its base is 7 cm. The whole surface area of the cylinder is

We know that,

Total surface area of the cylinder = 2 (r + h)


Given that,


Diameter = 7 cm


So, Radius = 3.5 cm


Height = 80 cm


Therefore,


Total surface area = 2 × × 3.5 (3.5 + 80)


= 22 (83.5)


= 1837 cm2


Hence, option A is correct

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